Title :
An analysis of a fiber-optic magnetometer with magnetic feedback
Author :
Koo, K.P. ; Dandridge, A. ; Bucholtz, F. ; Tveten, A.B.
Author_Institution :
Naval Research Laboratory, Washington, DC, USA
fDate :
12/1/1987 12:00:00 AM
Abstract :
The magnetic feedback nulling technique in a fiber-optic magnetometer is analyzed both theoretically and experimentally. Results indicate that high nulling efficiency requires large closed loop gain, and large signal-to-noise ratio requires system bandwidth no larger than the signal bandwidth. Large linear dynamic range, freedom from magnetic hysteresis, and long term stability are achievable.
Keywords :
Magnetometers; Optical fiber transducers; Amorphous magnetic materials; Coils; Feedback; Frequency; Magnetic analysis; Magnetic resonance; Magnetometers; Magnetostriction; Optical fiber testing; Signal processing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1987.1075484
